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1990 Endeavour 54’ Custom Cruising Pilothouse Motor sailing Yacht Twin Engines
Cruising & Distance Ready Live aboard in luxury ICW Bridge Friendly 62’ mast height Electric winches in pilothouse cruise at 6 knots 2 GPH fuel consumption Tanks: Fresh Water = 300 Gallons Diesel Fuel = 350 Gallons Holding Tank = 40 Gallons
Equipment: 2020 / 2019 Upgrades New washer/Dryer New Ice Maker New 3 HP Outboard dingy motor Foredeck Repaired New Expansion tank (3) New 12 Volt starting Batterys replaced standing and running rigging replaced mast winches replaced twp 75 HP yanmar engines in 2007 New heads and stove in 2015 New water maker in 2014 New house batteries and chargers in 2016 bow thusterwith separate battery Raymarine Instruments and chart plotter 12.5 kohler genset with 20 HP yanmar engine Spectra 30 GPH water maker Electric swim platform Inflatable RIB dingy with 3 HP Honda outboard Electric windlass with two fortress anchors, 250’ feet of chain on primary and 150’ of rode and 10’ chain on secondary three heat pumps for heating & cooling
The theoretical maximum speed that a displacement hull can move efficiently through the water is determined by it's waterline length and displacement. It may be unable to reach this speed if the boat is underpowered or heavily loaded, though it may exceed this speed given enough power. Read more.
Classic hull speed formula:
Hull Speed = 1.34 x √LWL
A more accurate formula devised by Dave Gerr in The Propeller Handbook replaces the Speed/Length ratio constant of 1.34 with a calculation based on the Displacement/Length ratio.
Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio.311
Hull Speed = Max Speed/Length ratio x √LWL
A measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more.
SA/D = SA ÷ (D ÷ 64)2/3
A measure of the stability of a boat's hull that suggests how well a monohull will stand up to its sails. The ballast displacement ratio indicates how much of the weight of a boat is placed for maximum stability against capsizing and is an indicator of stiffness and resistance to capsize.
Ballast / Displacement * 100
A measure of the weight of the boat relative to it's length at the waterline. The higher a boat’s D/L ratio, the more easily it will carry a load and the more comfortable its motion will be. The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more.
D/L = (D ÷ 2240) ÷ (0.01 x LWL)³
This ratio assess how quickly and abruptly a boat’s hull reacts to waves in a significant seaway, these being the elements of a boat’s motion most likely to cause seasickness. Read more.
Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam1.33)
This formula attempts to indicate whether a given boat might be too wide and light to readily right itself after being overturned in extreme conditions. Read more.
CSV = Beam ÷ ³√(D / 64)
Similar to the GULFSTAR 54.
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